mirror of
https://github.com/jamiepine/voicebox.git
synced 2026-09-15 12:50:42 -07:00
Makinde
d00e28ffda
Implements offline mode patch for API stability issues: - Add hf_offline_patch.py to monkey-patch huggingface_hub - Force cache-only lookups before mlx_audio imports - Create symlink from original Qwen repo to MLX community version when only MLX version is cached This fixes: - Issue #150: Internet required even with cached models - Issue #151: API crashes when HF network fails The patch ensures that if models are locally cached, no network requests are made to HuggingFace during speech generation.
101 lines
3.8 KiB
Python
101 lines
3.8 KiB
Python
"""
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Monkey patch for huggingface_hub to force offline mode with cached models.
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This prevents mlx_audio from making network requests when models are already downloaded.
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"""
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import os
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from pathlib import Path
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from typing import Optional, Union
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def patch_huggingface_hub_offline():
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"""
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Monkey-patch huggingface_hub to force offline mode.
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This must be called BEFORE importing mlx_audio.
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"""
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try:
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import huggingface_hub
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from huggingface_hub import constants as hf_constants
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from huggingface_hub.file_download import _try_to_load_from_cache
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# Store original function
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original_try_load = _try_to_load_from_cache
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def _patched_try_to_load_from_cache(
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repo_id: str,
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filename: str,
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cache_dir: Union[str, Path, None] = None,
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revision: Optional[str] = None,
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repo_type: Optional[str] = None,
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):
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"""
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Patched version that forces offline mode.
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Returns None if not cached (instead of making network request).
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"""
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# Always use the original function, but we're already in HF_HUB_OFFLINE mode
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result = original_try_load(
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repo_id=repo_id,
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filename=filename,
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cache_dir=cache_dir,
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revision=revision,
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repo_type=repo_type,
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)
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if result is None:
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# File not in cache - log this for debugging
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cache_path = Path(hf_constants.HF_HUB_CACHE) / f"models--{repo_id.replace('/', '--')}"
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print(f"[HF_PATCH] File not cached: {repo_id}/{filename}")
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print(f"[HF_PATCH] Expected at: {cache_path}")
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else:
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print(f"[HF_PATCH] Cache hit: {repo_id}/{filename}")
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return result
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# Replace the function
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import huggingface_hub.file_download as fd
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fd._try_to_load_from_cache = _patched_try_to_load_from_cache
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print("[HF_PATCH] huggingface_hub patched for offline mode")
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except ImportError:
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print("[HF_PATCH] huggingface_hub not found, skipping patch")
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except Exception as e:
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print(f"[HF_PATCH] Error patching huggingface_hub: {e}")
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def ensure_original_qwen_config_cached():
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"""
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The MLX community model is based on the original Qwen model.
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mlx_audio may try to fetch config from the original repo.
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We need to ensure that config is available in the cache.
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"""
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from huggingface_hub import constants as hf_constants
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# Original Qwen model that mlx_audio might reference
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original_repo = "Qwen/Qwen3-TTS-12Hz-1.7B-Base"
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mlx_repo = "mlx-community/Qwen3-TTS-12Hz-1.7B-Base-bf16"
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cache_dir = Path(hf_constants.HF_HUB_CACHE)
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original_path = cache_dir / f"models--{original_repo.replace('/', '--')}"
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mlx_path = cache_dir / f"models--{mlx_repo.replace('/', '--')}"
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# If original repo cache doesn't exist but MLX does, create a symlink or copy config
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if not original_path.exists() and mlx_path.exists():
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print(f"[HF_PATCH] Original repo not cached, but MLX version is")
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print(f"[HF_PATCH] Creating symlink from {original_repo} -> {mlx_repo}")
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try:
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# Create a symlink so the cache lookup succeeds
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original_path.parent.mkdir(parents=True, exist_ok=True)
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original_path.symlink_to(mlx_path, target_is_directory=True)
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print(f"[HF_PATCH] Symlink created successfully")
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except Exception as e:
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print(f"[HF_PATCH] Could not create symlink: {e}")
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# Auto-apply patch when module is imported
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if os.environ.get("VOICEBOX_OFFLINE_PATCH", "1") != "0":
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patch_huggingface_hub_offline()
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ensure_original_qwen_config_cached()
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